Water-meter system.



J. W. GLHUN.

WATER METER SYSTEM.

APPLIOATION FILED 11116.15, 1911.

Patented July 14, 1914.`

F'IGQE.

WITNESSEE.

JOHN W. CALHOUN, -OF CONNELLSVELE, PENNSYLVANIA.

yWauu-n1;JamminSYSTEM.

Applicationiled August 15,1911. Serial No. 644,221.

To all 'whom/it may concern.'

Be it'known that I, JOHN W. CAL'noUN, a' citizen of theUnited States, and residentof 'Connellsville, inthe county ofFayett'e and 'State of Pennsylvania, have invented a new: `and useful Improvement in Water-Meter Systems; and I do hereby declare .the follow- -ing t0 be a full,

clear, and exact description thereof. y 'l l, My invention relates to meters, `and 1s especially directed to water meters such as' those .controlling `supply to large works.

It. is found that the ordinary large water m'eter is not usually sufficiently sensitive to register the flow of a small stream, and consequent-ly .at times much water passes through without, being measured or4 regisf tered..

come this diliiculty.` i

It consists, generally stated, in the combination with two meters of.. diferent capacity, .of a casing containing a delivery chamber into which the delivery pipes of differentI size enterl from the two -meters, and 4valves of di'erent sizes controllingthe 'out- .let ports from the-meters and connected'toi gether sothat uponthe reduction of How the delivery port from the larger meter will be closed and the water will passthrough the smaller'meter which isl capable of measuring a smaller flow or stream.

In the accompanying drawings Figure v1 is a top or plan view lillustrating -the invention; Fig. -2 is a cross section on-the line 2 2 Fig. .1; Fig. 3 is a longitudinal. section on the line 34-3 Fig. 1; and Fig. 4 is a longitudinal section onthe line 4-4 Fig. 1.

The supply main' 1 leads to the main meter 2 intende-d to measure the entirevsupply when a heavy stream isbeing drawn through the -meter` This meter communi cates with the pipe 4 having the, outlet port 5 within the casing 6 having the discharge pipe 7 connected to any place of use. The' branch pipel 8 leads from the supply pipe 1 .to the smaller'meter 9 which by the pipe 10 having the delivery port 11 communicates with the same chamber 6.. The meters employed .may be of any'particular type, being ,v simply illustrated diagrammatically and may be arranged for measuring any .suit- -.alole 'luid, though the special usev intended is for the measuring of water. The meters are of di'erent capacities, the main meter -2, as. above stated, being adapted to measure My invention has for its object to loverlwhile the port 11 deliversonly a small flowv into thecommon chamber.

Mounted above the ports' 5 and ll of the pipes 4 and 10 where they enter the common chamber' 6 are the valves 12 and 13 of size 4 corresponding to theports, the valve 12 bethe full supply while the small meter 9lsv :Specification of Letters Patent. I i Jll'rly'lll, y19.1.2.4. I

ing of large size and the valve 13of rela'.-4

tively small size. The valves are suitably mounted Ato close their ports, being shown as gulded by the cross brace 14 and 'by suitproperly weighted as by springs 16, 17, confinedjoetweenl the cross bracel 14l and .the l. valve bodies and fitting. aroundv thefvalve stems 18, 19, these stems `extending' up through the cross brace and being connected by the pivot lever 20 Vengagingl with the .upper endsof the valve stems, the lever loelng shown as mounted `0n the bearing 21,

,'Thevalves may, however, be located and mounted in any suitable way to accomplish the end intended; The spring 16 of the valve controlling the main meter supply 2 is of heavier power t-han the spring 17 and the valve 12 has a more extended valve surface within the chamber 6 than the valve 13. j

The valves are mounted so that when a relatively heavy pressure isvdeveloped Within the chamber 6 itrcoperates with the spring 16 controlling the valve 12 to permit said spring to close the same and thereby open the valve 13. Vhen a full supply of water is being drawn through the discharge pipe 7 the pressure in the chamber 6 is relatively lowered and the pressure in the main delivery pipe 4 from the main meter 2 holds the valve 12 Aopen, the spring 17 then closing the small 4valve 13. Water then flows through the main meter in excess of the amount draWnthrough the discharge pipe 7, in Which case the pressure within the chamber 6 is increased andl reacts upon the large valvel head of thevalve 12 in addition to the weight or force of the spring controlling that valve, toY close "the, same, and in so closing it to open the valve 13, when thev small amount able Wings within the ports. The valves are f nog of waterthen beingl used is drawn through v.

the smallermeter 9, which is o f such size thatv it will accurately measure such small stream 0r flow. This continues until a greater draft i's ma de upon the supply which lowers the pressure wit-hin the chamber 6,- whereupon the pressure within the main Supply, through the main meter 2 andthe pipe 4;, is sufficient to'raise the valve 12 and form communication through said pipe with the chamber 6, in which case it permits the lowering of the valve 13 controlling the small meter outlet, and thatvalve is closed` and the main meter which, 'is adapted to measure the large supply acts 4to measure all the water passing through. By means of this connection provision is made for the measuring of the entire supply either through the main large meter or the small meter, and thedilculties encountered where only one large-meter is employed are entirely overcome.

What I claim is:

1 The combination with a supply main, of two meters of dierent capacity communioatin therewith, a casing containing a delivery c amber communicating with the delivery side of said vmeters by separate ports, valves within said chamber controlling 'said ports, and ,closer means-cf different strengths operating to close said valves, respectively,

the' openings of said valves being controlled by thecombined action ofthe varying fluid` p A closerv means of strengths proportionate to the capacity of the two meters acting upon the valves communlcatmg with the correspo-ridingy meters, and operative connections between said valveswhereby theopening Y and closing of said valves is controlled by the combined action of the fluid vpressure within said chamber, said closer means and said connection, on said valve.

3. The combination with twometers of different capacity, `of the casing 6 containing a delivery chamber, '[the meters having outlets 5, 11 respectively, communic`ating` therewith, the valves 12, 13, having controlling springs 16, 17, and the lever 2O connecting said valves. 1

, In testimony whereof, I the Said JOHN 1V. CALHOUN have hereunto set my hand.

JOHN W. CALHOUN.

l/Vitnesses: y

J. S. MUNROE, M. A. CoFFEY. 

